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The league office represents the interests of the owners of the teams. The ufc office represents the owners of the ufc.
Players are NOT owners in mma. They are the talent.
PGA doesn’t call themselves a league. Tennis doesn’t call themselves a league.
PFL has 75 or so fighters, put on 10 shows a year. A typical season from may / June to October with a championship in dec. then start all over the next year. It’s a model that never succeeded in boxing, and can only succeed with a small closed system.
The ufc, and most of mma and boxing is perpetual. They don’t have a reset button. They aren’t like the leagues you want to compare them to. Not sure why you do.